A 2.00 g sample of finely ground limestone was placed in an Erlenmeyer flask, and 60.00 cm3 of 3.000 mol dm-3 HCl. After the reaction went to completion, the impurities were filtered off and the solution was diluted with water to a total volume of 100.0 cm3 . 25.00 cm3 of this solution required 35.50 cm 3 of 1.000 mol dm-3 NaOH for neutralization. What is the mass% of CaCO3 in the limestone?

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i